TY - GEN
T1 - Constant envelope OFDM transmission over impulsive noise power-line communication channels
AU - Rabie, K. M.
AU - Alsusa, E.
AU - Familua, A. D.
AU - Cheng, L.
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/7/1
Y1 - 2015/7/1
N2 - Signal blanking is a simple and efficient method to reduce the effect of impulsive noise over power-line channels. The efficiency of this method, however, is found to be not only impacted by the threshold selection but also by the average peak-to-average ratio (PAPR) value of the orthogonal frequency division multiplexing (OFDM) signals. As such, the blanking capability can be further enhanced by reducing the PAPR value. With this in mind, in this paper we evaluate the performance of constant envelope OFDM (CE-OFDM) which has inherently the lowest achievable PAPR of 0 dB; therefore, the proposed system is expected to provide the lower bound performance of the blanking-based method. In order to characterize system performance, we consider the probability of blanking error and signal-to-noise ratio (SNR) at the output of the blanking device. The results reveal that the proposed system can achieve significant improvements over the conventional OFDM blanking-based scheme in terms of minimized probability of blanking error. It will also be shown that output SNR gains of up to 6 dB can be attained over the conventional OFDM blanking-based systems.
AB - Signal blanking is a simple and efficient method to reduce the effect of impulsive noise over power-line channels. The efficiency of this method, however, is found to be not only impacted by the threshold selection but also by the average peak-to-average ratio (PAPR) value of the orthogonal frequency division multiplexing (OFDM) signals. As such, the blanking capability can be further enhanced by reducing the PAPR value. With this in mind, in this paper we evaluate the performance of constant envelope OFDM (CE-OFDM) which has inherently the lowest achievable PAPR of 0 dB; therefore, the proposed system is expected to provide the lower bound performance of the blanking-based method. In order to characterize system performance, we consider the probability of blanking error and signal-to-noise ratio (SNR) at the output of the blanking device. The results reveal that the proposed system can achieve significant improvements over the conventional OFDM blanking-based scheme in terms of minimized probability of blanking error. It will also be shown that output SNR gains of up to 6 dB can be attained over the conventional OFDM blanking-based systems.
KW - Blanking
KW - constant envelope OFDM (CE-OFDM)
KW - peak-to-average power ratio (PAPR)
KW - power-line communications (PLC)
KW - signal-to-noise ratio (SNR)
UR - https://www.scopus.com/pages/publications/84943339538
U2 - 10.1109/ISPLC.2015.7147582
DO - 10.1109/ISPLC.2015.7147582
M3 - Conference contribution
AN - SCOPUS:84943339538
T3 - 2015 IEEE International Symposium on Power Line Communications and Its Applications, ISPLC 2015
SP - 13
EP - 18
BT - 2015 IEEE International Symposium on Power Line Communications and Its Applications, ISPLC 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2015 IEEE International Symposium on Power Line Communications and Its Applications, ISPLC 2015
Y2 - 29 March 2015 through 1 April 2015
ER -